DF19-20P-1V(56) Equivalent & Substitute Parts

Part Overview

The DF19-20P-1V(56) is a surface mount rectangular connector header manufactured by Hirose Electric Co Ltd, designed for board-to-cable/wire applications with 20 positions at 1.00mm pitch. This connector features shrouded 4-wall construction with friction lock fastening and solder termination. The part is currently classified as obsolete, making identification of compatible substitutes essential for ongoing design support and component procurement.

Substiute Parts

DF19-20P-1V(56)

Hirose Electric Co LtdIn Stock: 2230DF19-20P-1V(56) Datasheet

Current PartRFQ

DF19-20P-1V(52)

Hirose Electric Co LtdIn Stock: 2544DF19-20P-1V(52) Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DF19-20P-1V(56) is determined by the following critical parameters:

• Series Compatibility: Both parts must belong to the DF19 series
• Position Count: 20 positions required
• Pitch Specification: 1.00mm (0.039") mating pitch
• Connector Type: Receptacle configuration
• Contact Type: Male pin contacts
• Mounting Method: Surface mount technology
• Termination Type: Solder termination
• Fastening Mechanism: Friction lock
• Electrical Ratings: 100V voltage rating minimum
• Environmental Compliance: RoHS compliant, UL94 V-0 flammability rating
• Temperature Range: -35°C to 85°C operating specification

The DF19-20P-1V(52) qualifies as a direct substitute based on matching all critical parameters within the DF19 series specification.

Parameter Comparison

Engineering Selection Recommendations

The DF19-20P-1V(52) is the qualified substitute for the obsolete DF19-20P-1V(56). Both connectors maintain identical core electrical and mechanical specifications within the DF19 series, including 20-position configuration, 1.00mm pitch, surface mount technology, and friction lock fastening.

The DF19-20P-1V(52) offers the advantage of active product status, ensuring continued availability and manufacturing support. This part is supplied in Tape & Reel packaging, suitable for automated assembly processes.

Design considerations include the following documented variations:

• Shrouding Configuration: The substitute features 3-wall shrouding versus 4-wall on the original. Both configurations provide equivalent mechanical protection and mating alignment within DF19 series specifications.
• Contact Finish: The substitute uses tin finish on mating contacts (1.00µm thickness) compared to gold finish (0.099µm thickness) on the original. Both finishes meet the electrical and environmental requirements for this connector class.
• Post Finish: The substitute uses tin finish on posts versus tin-copper on the original. Both compositions satisfy solder termination requirements.

All compliance certifications remain consistent: RoHS compliant, UL94 V-0 flammability rating, and MSL 1 moisture sensitivity level.

Frequently Asked Questions (FAQ)

Q: Can DF19-20P-1V(52) be used as a direct replacement for DF19-20P-1V(56)?

A: Yes. Both connectors share identical core specifications: 20 positions, 1.00mm pitch, receptacle type, male pin contacts, surface mount configuration, solder termination, and friction lock fastening. The DF19-20P-1V(52) is the manufacturer-recommended substitute and is currently in active production.

Q: What is the difference between 4-wall and 3-wall shrouding?

A: Shrouding wall count refers to the number of sides enclosed by the insulation housing. Both 3-wall and 4-wall configurations provide mechanical protection and alignment guidance for mating operations. The 3-wall design on the DF19-20P-1V(52) maintains full compatibility with DF19 series mating components.

Q: Why does the contact finish differ between the two parts?

A: The original DF19-20P-1V(56) uses gold plating on mating contacts for enhanced corrosion resistance. The DF19-20P-1V(52) uses tin plating, which is standard for this connector class and meets all electrical performance and environmental requirements. Both finishes are suitable for 100V applications and maintain equivalent contact reliability.

Q: What packaging is available for the substitute part?

A: The DF19-20P-1V(52) is supplied in Tape & Reel (TR) packaging, optimized for automated pick-and-place assembly processes. This packaging format is standard for surface mount connectors in production environments.

Q: Are both parts RoHS compliant?

A: Yes. Both the DF19-20P-1V(56) and DF19-20P-1V(52) are RoHS compliant and carry UL94 V-0 flammability certification. Both parts maintain MSL 1 moisture sensitivity level, indicating unlimited shelf life under standard storage conditions.

Q: What is the operating temperature range for these connectors?

A: Both connectors operate across -35°C to 85°C, suitable for industrial and commercial applications. This temperature range is consistent across the DF19 series.